Which question would a demographer most likely ask?
a which ethnic groups live in this community?
b which officials sit on the city's school board?
c what is the price of gasoline and oil in this area?
d which landforms and waterways make up this region?

The correct answer would be A, Which ethnic groups live in this community?

Explanation:

A demographer is a person who is an expert in the field of demographics. Demographics is the study of statistical data in the human population. So a demographer is an expert in the study of human population. There are many characteristics in demographics which may include Race, ethnicity, age, gender, education, profession, occupation, marital status, etc. So a demographer is most likely to ask about the ethnic groups living in a society rather than asking about the officials of the city school, price of gasoline or the landforms and waterways of the region.

states

explanation:

as the old saying goes, all politics are local. state and federal governments affect our daily lives in numerous ways. yet, in our federal system, there is supposed to be a balance between federal and state power. as james madison envisioned it in federalist no. 51, “the power surrendered by the people” would be “divided between two distinct governments,” creating a balance of power that would enable the “different governments [to] control each other.”

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

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